Struct FpuReg

#[repr(C)]
pub struct FpuReg {
    pub significand: u64,
    pub sign_exp: u16,
}

x87 80-bit floating point value.

Fields

significand: u64

64-bit mantissa.

sign_exp: u16

15-bit biased exponent and sign bit.

Implementations

impl FpuReg

pub fn from_16byte_arrays(byte_arrays: &[[u8; 16]; 8]) -> [FpuReg; 8]

Convert an array of 8x16-byte arrays to an array of 8 FpuReg.

Ignores any data in the upper 6 bytes of each element; the values represent 80-bit FPU registers, so the upper 48 bits are unused.

pub fn to_16byte_arrays(regs: &[FpuReg; 8]) -> [[u8; 16]; 8]

Convert an array of 8 FpuReg into 8x16-byte arrays.

Trait Implementations

impl Clone for FpuReg

fn clone(&self) -> FpuReg

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FpuReg

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FpuReg

fn default() -> FpuReg

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FpuReg

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<[u8; 10]> for FpuReg

fn from(value: [u8; 10]) -> FpuReg

Construct a FpuReg from an 80-bit representation.

impl From<FpuReg> for [u8; 10]

fn from(value: FpuReg) -> [u8; 10]

Convert an FpuReg into its 80-bit “TBYTE” representation.

impl From<FpuReg> for [u8; 16]

fn from(value: FpuReg) -> [u8; 16]

Convert an FpuReg into its 80-bit representation plus 6 unused upper bytes. This is a convenience function for converting to hypervisor types.

impl PartialEq for FpuReg

fn eq(&self, other: &FpuReg) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FpuReg

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for FpuReg

impl Eq for FpuReg

impl StructuralPartialEq for FpuReg